In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D". 
Q: [header] How to cite an ebook [title] Start with the author's name. [step] When listing the author's name in mla, put their last name first, followed by their first and middle names. Avoid initials wherever possible. <sep> (A) If there are multiple authors, each subsequent author should be listed in regular " first-middle-last name " order. Separate the names of multiple authors with commas. (B) The author must be appearing in your letter. Doing this will be easiest to read later, after the closing paragraph. (C) [substeps] For example, if you're citing an ebook titled horror, it's important to follow that using publication date. In this case, the author's last name is john jeffries. (D) This will become boring and hard to note. [title] Change the style and format of the book if you want to use it for reference.
A: 
A